The Simpson TA9SS 8-1/4 in. 12-Gauge Stainless-Steel Staircase Angle from Simpson Strong-Tie is purpose-built for structurally sound staircase framing, giving builders and contractors a dependable bracket that keeps stair connections tight, aligned, and strong. Made from 12-gauge stainless steel, this angle bracket is equally at home in exterior framing projects and treated-wood applications where corrosion resistance is a priority, and it also handles heavy-duty 90 deg. corner connections wherever a narrow profile is required.

Key Features

• Designed for structurally sound staircase framing - provides a reliable, code-conscious connection at stair tread and stringer junctions without compromising the surrounding structure.
• Eliminates complicated stringer notching - removes a labor-intensive cutting step that can weaken stair stringers, protecting the structural integrity of the entire staircase assembly.
• Also ideal for heavy-duty 90 deg. connections where a narrow angle is needed - extends the bracket's usefulness beyond staircases, making it a versatile choice for tight framing situations.
• 8-1/4 in. length in 12-gauge steel - the substantial gauge delivers the rigidity needed for load-bearing connections while the length suits a range of stringer and framing depths.
• Stainless steel finish for extra corrosion resistance - stands up to the moisture and chemical exposure common in exterior decks, porches, and treated-lumber framing, reducing the risk of long-term fastener and bracket deterioration.

Why This Product

• Protects stringer integrity from the start - by eliminating the need for complicated notching, this bracket preserves the full depth and strength of each stair stringer, a direct structural benefit that notched stringers cannot match.
• Built for demanding exterior and treated-wood environments - the stainless-steel construction offers extra corrosion resistance that standard steel angles cannot provide, making this bracket a smart long-term investment for outdoor stairways and decks.
• Versatile beyond staircase framing - the narrow profile and heavy-duty 90 deg. capability mean one bracket can serve multiple connection types on the same job, reducing the number of different hardware pieces needed on site.
• Backed by Simpson Strong-Tie engineering - Simpson Strong-Tie angles are recognized for consistent corner alignment and stronger joints, giving installers confidence that each connection meets structural expectations.

Specifications

• Model Number: TA9SS
• Length: 8-1/4 in.
• Gauge: 12
• Material: Stainless Steel
• Finish: Stainless Steel
• Country of Origin: United States

Approved Applications

• Structurally sound staircase framing connections
• Heavy-duty 90 deg. connections where a narrow angle is needed
• Exterior applications requiring enhanced corrosion resistance
• Framing projects involving treated wood where corrosion resistance is critical

Frequently Asked Questions

What fasteners are recommended for installing the Simpson TA9SS staircase angle?

Install with 1/4 in. x 1-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws for a secure, structurally sound connection.

Why choose a stainless-steel staircase angle over a standard steel angle?

Stainless steel offers extra corrosion resistance, making the TA9SS especially well suited for exterior applications and projects involving treated wood where standard steel may be prone to deterioration over time.

Does the Simpson TA9SS eliminate the need for stringer notching?

Yes. The TA9SS is specifically designed to eliminate complicated stringer notching, which can weaken stair stringers and compromise the structural integrity of a staircase.

Can the TA9SS be used for applications other than staircase framing?

Yes. In addition to staircase framing, the TA9SS is also ideal for heavy-duty 90 deg. connections in situations where a narrow angle bracket is needed.